/*
 * Copyright (c) 2025 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


import { cloud, CloudDBCollection } from '@hw-agconnect/cloud-server';
import { News } from './News';

// database zone
const ZONE_NAME = "News";

export class CloudDbZoneWrapper {
  collection: CloudDBCollection<News>;

  constructor() {
    this.collection = cloud.database({ zoneName: ZONE_NAME }).collection(News);
  }

  // query data
  async queryNews() {
    let query = this.baseQuery().orderByDesc("pubDate");
    return await query.get();
  }

  async queryLatestNews() {
    let query = this.baseQuery().orderByDesc("pubDate").limit(1, 0);
    return await query.get();
  }

  private baseQuery() {
    return this.collection.query();
  }

  // update data
  async upsertNews(records: News[]) {
    return await this.collection.upsert(records);
  }


  // delete data
  async deleteNews(records: News[]) {
    return await this.collection.delete(records);
  }
}